package CloudStorageServlets;

import CloudStorage.Database;
import java.io.IOException;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class EditFileServlet extends HttpServlet
{
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException, SQLException, ClassNotFoundException, InstantiationException, IllegalAccessException
    {
        int fileId = Integer.parseInt(request.getParameter("fileid"));
        Database database = new Database();
        
        String category = request.getParameter("category");

        if ( category.equals("Select Category") == false )
        {
            database.updateFileCategory(fileId, category);
        }

        String type = request.getParameter("type");

        if ( type.equals("Select Type") == false )
        {
            database.updateFileType(fileId, type);
        }

        String description = request.getParameter("description");

        if ( description.isEmpty() == false )
        {
            database.updateFileDescription(fileId, description);
        }


        if ( request.getParameter("price").isEmpty() == false )
        {
            float price = Float.parseFloat(request.getParameter("price"));
            database.updateFileValue(fileId, price);
        }

        String [] delete = request.getParameterValues("delete");
        if ( delete != null && delete.length != 0)
        {
            database.deleteFile(fileId);
            response.sendRedirect("myuploads.jsp");
            return;
        }

        response.sendRedirect("viewfile.jsp?fileid=" + String.valueOf(fileId));
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            Logger.getLogger(EditFileServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
